US4373671A - Electromagnetic fuel injector - Google Patents

Electromagnetic fuel injector Download PDF

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Publication number
US4373671A
US4373671A US06/253,458 US25345881A US4373671A US 4373671 A US4373671 A US 4373671A US 25345881 A US25345881 A US 25345881A US 4373671 A US4373671 A US 4373671A
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United States
Prior art keywords
fuel
section
cavity
armature
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/253,458
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English (en)
Inventor
Dante S. Giardini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Motor Co
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Ford Motor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Motor Co filed Critical Ford Motor Co
Priority to US06/253,458 priority Critical patent/US4373671A/en
Assigned to FORD MOTOR COMPANY, DEARBORN, MICH. A CORP. OF DE. reassignment FORD MOTOR COMPANY, DEARBORN, MICH. A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GIARDINI, DANTE S.
Priority to CA000399107A priority patent/CA1176926A/fr
Priority to JP57060849A priority patent/JPS57179363A/ja
Priority to EP82301902A priority patent/EP0063049B1/fr
Priority to DE8282301902T priority patent/DE3264247D1/de
Application granted granted Critical
Publication of US4373671A publication Critical patent/US4373671A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/04—Pumps peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M49/00—Fuel-injection apparatus in which injection pumps are driven or injectors are actuated, by the pressure in engine working cylinders, or by impact of engine working piston
    • F02M49/02—Fuel-injection apparatus in which injection pumps are driven or injectors are actuated, by the pressure in engine working cylinders, or by impact of engine working piston using the cylinder pressure, e.g. compression end pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/027—Injectors structurally combined with fuel-injection pumps characterised by the pump drive electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/003—Measuring variation of fuel pressure in high pressure line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/24—Fuel-injection apparatus with sensors

Definitions

  • This invention relates in general to an internal combustion engine fuel injector assembly. More particularly, it relates to the construction of a fuel injector assembly that injects the fuel charge by the actuation of an electromagnetic assembly.
  • an electromagnetically actuated injector that has a practically sized (i.e., smaller) coil and armature assembly that displaces fuel out through an orifice.
  • a coil and armature assembly should be accurately controlled so that the amount of fuel can be precisely controlled with each injection.
  • Electromagnetically actuated fuel injection valves are known.
  • U.S. Pat. No. 2,332,909 issued to Fuscaldo on Oct. 26, 1943 discloses an example of an electromagnetically actuated valve in combination with fuel displacement pistons. Combustion pressures drive the displacement piston while the armature opens and closes a valve.
  • U.S. Pat. No. 4,097,833 discloses a tubular armature and coil assembly.
  • the armature fits within an annular groove in a housing surrounding the coil.
  • My invention is an improvement of my Constant Pressure Fuel Injector Assembly described in U.S. Pat. No. 4,197,996 issued Apr. 15, 1980.
  • My U.S. Pat. No. 4,197,906 discloses the general concept of a pressure compensated injection valve which uses the combustion chamber pressures to assist the discharge of fuel through the outlet orifice of the injector.
  • the disclosed embodiment has an electromagnetic assembly which controls a fuel control valve and a spring that operates a fuel displacement piston. The gas pressure in the combustion chamber is exerted upon the piston to cancel the effects of the combustion chamber pressures exerted on the fuel at the outlet orifice when the valve is open.
  • a fuel injector for use in a combustion chamber of an internal combustion engine has an electromagnetic assembly having a moveable armature operably connected to a piston dividing a cavity in a housing into a first and second section.
  • the first section of the cavity is in communication with the gas pressures within the combustion chamber and the second section is in communication with both an outlet orifice leading to the combustion chamber and a pressurized fuel source.
  • the outlet orifice has a normally closed fuel flow control valve.
  • the armature is tubular and is received in an annular gap adjacent a coil within the housing. Springs bias both the tubular armature and the control valve to first and closed positions respectively.
  • a pressure sensor in communication with the second cavity section to sense pressures of the fuel which correlate with the pressures within the combustion chamber.
  • a feedback position sensor is mounted in the housing to sense the position of the armature.
  • one aspect of the invention includes a fuel injector having an electromagnetic assembly with the armature connected to a fluid driving means with the fluid driving means dividing the cavity into a first and second section; the first section being in pressure communication with the combustion chamber and the second section in communication with a pressurized fuel source and the outlet orifice.
  • the fuel flow control valve is moveable to open and close the outlet orifice.
  • the fuel control valve and armature have means for biasing them to a first position to close the outlet orifice. Energizing of the coil moves the armature to a second position causing the fluid displacement means to positively displace the fuel in the cavity such that opening of said fuel flow control valve allows fuel to pass through the orifice.
  • Another aspect of the broader invention includes a fuel injector that has an electromagnetic assembly having a tubular armature receivable in an annular gap in a ferrous injector housing.
  • the energizing of the assembly operably moves the armature a predetermined amount in a linear relation with the amount of current passing through the assembly.
  • FIG. 1 is a cross-sectional view of a fuel injector assembly embodying the invention.
  • FIG. 2 is a cross-sectional view along lines II--II shown in FIG. 1.
  • the fuel injector 10 has a housing 12 which houses an electromagnetic coil 14 that drives an armature 16.
  • the armature is operably connected to a piston 18 which drives fluid that is within a defined chamber 20 out through an outlet orifice 22.
  • the housing 12 includes a body portion 24, a lower end cap 26 and an upper end cap 28.
  • the body portion 24 is made from an electromagnetically conductive material such as steel or other ferrous material.
  • the upper end cap 28 is made from a nonferrous material such as plastic.
  • the upper end cap 28 has an electrical adapter outlet 30 housing an electrical connection 32 to the electromagnetic coil 14.
  • the body portion 24 functions as an electromagnetic core having a central core section 34 which surrounds a bore 36 axially extending through said body portion.
  • the body portion 24 also has an outer core section 38 which surrounds said coil 14.
  • the core sections have pole surfaces 37 and 39 which define an annular gap 40.
  • the poles 37 and 39 are surfaces arranged such that infinitesimal radially aligned surfaces of the respective poles are parallel.
  • the armature 16 is cup shaped with a tubular portion constructed to be received within the gap 40.
  • the armature 16 has an end wall 41 rigidly connected to a shaft 42 that extends axially through the bore 36.
  • a spring 44 is interposed between the end wall 41 and a spring seat 46 to bias the armature 16 in an upward direction as shown in FIG. 1.
  • the shaft 42 has a narrow diameter stem portion 43 that connects the armature 16 to the piston 18.
  • the piston 18 has an outside diameter greater than the portion 43 of shaft 42 to form an annular surface area 45 thereabout.
  • the piston 18 divides the bottom section of the bore into the before mentioned fluid containing chamber 20 and a pressure responsive chamber 50.
  • the piston 18 has cylindrical wall section 52 extending downward to form a cavity 54 therein which is part of the fluid containing chamber 20.
  • a fuel control valve 56 has a valve head 58 which closes outlet orifice 22.
  • a stem 60 extends upward from lead 58 and has its upper end received within the cavity 54 of the piston 18.
  • the stem 60 has, as shown clearly in FIG. 2, three radially extending integral flanges 62 which slideably engage the inner surface of the cylindrical wall 52 of piston 18.
  • a retaining collar 64 is affixed to stem 60 at an annular groove 65.
  • a spring 66 is compressed between the collar 64 and an inner surface 68 of the bottom end cap 26 such that the spring 66 biases the fuel flow control valve 56 upward to a closed position.
  • the fluid containing chamber 20 communicates with conduit 70 which leads to a one-way check valve 72.
  • the check valve 72 is normally biased to a closed position by a spring 76 but can be opened to allow fuel to flow through an inlet port 74 into the conduit 70 and chamber 20.
  • the inlet port is connected to a low pressure fuel source (not shown).
  • the pressure chamber 50 is connected to a vent opening 78 in communication with the pressure within the engine's combustion chamber.
  • the injector housing 12 in this case is adapted to be mounted with the end 26 of the injector extending into the combustion chamber of an engine for injecting fuel directly therein.
  • annular teflon lip seal 80 fits around the cylindrical wall 52 of piston 18 and a second annular teflon lip seal 82 fits about the stem 43 of shaft 42 above the pressure chamber 50.
  • a piezoelectrical pressure sensor 84 is mounted in the housing in fluid communication with chamber 20 to read pressures therein via conduit 70 and conduit branch 85.
  • An electrical connection 86 is mounted within adapter 30 and connected to the sensor 84.
  • a feedback position sensor 88 is mounted above the tubular armature within the upper end cap 28 to read the axial position of the top end 90 of shaft 42.
  • An electrical connection 92 is mounted within adapter 30 and connected to the sensor 88.
  • the purpose of the injector 10 is to inject fuel into a combustion chamber of an internal combustion engine.
  • a low pressure fuel source fills chamber 20, piston 18 is displaced, and fuel passes through the orifice 22 when the valve 56 is open.
  • check valve 72 which is normally closed, opens when piston 18 moves upwardly to fill conduit 70 and chamber 20 with fuel from the low pressure fuel source.
  • the spring 66 maintains the valve 56 in a normally closed position against the pressurized fuel introduced through the inlet 74.
  • the piston 18 is normally biased in an upward position.
  • an electric current is sent through an electrical connection 32 to the coil 14.
  • the armature 16 is forced into the annular gap 40 against certain forces.
  • a first force is the force exerted by spring 44.
  • a second force is exerted by the fuel pressure in the chamber 20 exerted on the cross-sectional area of the piston 18.
  • the movement of armature 16 causes the piston 18 to move downward to diminish the size of the fuel containing chamber 20 to cause a pressurizing of the fuel within the fuel chamber 20.
  • the pressurizing of the fuel forces open the valve 56 and allows the fuel to pass through the outlet orifice 22.
  • the fuel pressure needed to open valve 56 is determined by; firstly, the strength of spring 66 and secondly by the gas pressures in the combustion chamber acting on valve head 58.
  • spring 44 Upon deenergizing of the coil 14, spring 44 lifts the armature 16 and the piston 18 upwardly. The pressure of the fuel in the cavity is thereby reduced to allow the spring 66 to close the valve 56. In addition, low pressurized fuel can pass through the check valve 72 at the inlet port 74 to refill the fuel chamber 20 as the piston 18 moves upwardly.
  • cup shaped armature 16 as the means to force fuel from the chamber 20 through orifice 22 as well as the means to force open the valve head 58.
  • the timing of the stroke be controlled but also the extent of the piston 18 stroke can be controlled by using a tubular shaped armature 16 and an annular gap 40.
  • the gap 40 defined by the pole surfaces 37 and 39 that have their infintessimal sections geometrically parallel has a magnetic field passing therethrough which is substantially perpendicular to the pole surfaces. The force exerted on the tubular armature 16 by the current and magnetic field is linearly dependent on the amount of current passing through the coil 14.
  • the current can be controlled which in turn controls the distance which the armature 16 is moved within the gap 40 against the force of the return spring 44 and combustion pressures. In this fashion, if less than a full stroke of the piston 18 is desired, the current in the coil 14 can be reduced to the desired amount. This is particularly useful when the engine is idling.
  • a third and fourth advantage occurs by separating the fuel control valve 56 from the piston 18.
  • the valve 56 is able to close at the time the stroke of piston 18 ends.
  • the valve 56 does not need to remain open until the piston 18 is returned upward to its first position. This allows a faster closing of the valve 56 even before the coil 14 is de-energized.
  • the opening stroke of valve stem 60 is shorter than the full stroke of piston 18. This provides further durability of valve 56.
  • a pressure sensor 84 operably connected to the chamber 20 allows pressures to be sensed which directly correlate with the pressures in the combustion chamber since these pressures are transferred through the piston 18 and are exerted on the fuel contained with the chamber 20 and conduit 70 and conduit branch 85.
  • the advantage here is that combustion chamber pressures can be sensed without a sensor being exposed directly to the high temperatures that occur within the combustion chamber. In this fashion, the combustion pressures can be used as a parameter in a logic control circuit which controls the electric current to coil 14.
  • a feedback position sensor which is incorporated into the upper end cap 28 can indicate the position of the armature 16 and the position of the piston 18 which in turn can be fed to a logic circuit which would control the timing and amount of energy given to the coil 14.
  • the use of feedback sensor renders a more accurate fuel injection system by providing a further input to the logic control circuit.
  • a pressure compensated injector can be constructed to include an electromagnetic driving assembly which accurately delivers fuel to a combustion chamber of an internal combustion engine and can be controlled to vary the amounts of fuel and time at which the fuel is delivered.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
US06/253,458 1981-04-13 1981-04-13 Electromagnetic fuel injector Expired - Fee Related US4373671A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US06/253,458 US4373671A (en) 1981-04-13 1981-04-13 Electromagnetic fuel injector
CA000399107A CA1176926A (fr) 1981-04-13 1982-03-23 Injecteur electromagnetique de carburant
JP57060849A JPS57179363A (en) 1981-04-13 1982-04-12 Fuel injection valve
EP82301902A EP0063049B1 (fr) 1981-04-13 1982-04-13 Dispositif d'injection de carburant à commande électromagnétique
DE8282301902T DE3264247D1 (en) 1981-04-13 1982-04-13 Electromagnetic fuel injecor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/253,458 US4373671A (en) 1981-04-13 1981-04-13 Electromagnetic fuel injector

Publications (1)

Publication Number Publication Date
US4373671A true US4373671A (en) 1983-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
US06/253,458 Expired - Fee Related US4373671A (en) 1981-04-13 1981-04-13 Electromagnetic fuel injector

Country Status (5)

Country Link
US (1) US4373671A (fr)
EP (1) EP0063049B1 (fr)
JP (1) JPS57179363A (fr)
CA (1) CA1176926A (fr)
DE (1) DE3264247D1 (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475690A (en) * 1981-10-06 1984-10-09 Robert Bosch Gmbh Magnetic valve, in particular a fuel injection valve
US4568021A (en) * 1984-04-02 1986-02-04 General Motors Corporation Electromagnetic unit fuel injector
US4813599A (en) * 1986-08-30 1989-03-21 Robert Bosch Gmbh Electromagnetically actuatable fuel injection valve
US4922880A (en) * 1987-10-26 1990-05-08 Voest-Alpine Automotive Gesellschaft Mb. Ii. Fuel injector for internal combustion engines
US5820099A (en) * 1997-05-20 1998-10-13 Siemens Automotive Corporation Fluid migration inhibitor for fuel injectors
US5836521A (en) * 1995-03-09 1998-11-17 Dysekompagniet I/S Valve device with impact member and solenoid for atomizing a liquid
EP0680559B2 (fr) † 1992-02-17 2001-12-05 Orbital Engine Company (Australia) Pty. Ltd. Injecteurs
US6694959B1 (en) 1999-11-19 2004-02-24 Denso Corporation Ignition and injection control system for internal combustion engine
US20040118952A1 (en) * 2002-12-18 2004-06-24 Robert Bosch Fuel Systems Corporation Fuel injector having segmented metal core
US6830034B2 (en) 2000-02-07 2004-12-14 Siemens Automotive Corporation Fuel injector and fuel rail check valves
US20080011274A1 (en) * 2006-07-11 2008-01-17 Detroit Diesel Corporation Fuel injector with dual piezo-electric actuator
US20100252001A1 (en) * 2009-04-03 2010-10-07 Denso Corporation Fuel injector with fuel pressure sensor and electrical interconnection method of the same
CN101865061A (zh) * 2009-04-20 2010-10-20 株式会社电装 喷射器
US20100263633A1 (en) * 2007-11-02 2010-10-21 Denso Corporation Fuel injection valve and fuel injection apparatus
US20110011955A1 (en) * 2009-07-20 2011-01-20 Caterpillar Inc. Parallel circuit fuel filtration for fuel injectors
US20110125391A1 (en) * 1989-06-12 2011-05-26 Mcalister Technologies, Llc Pressure energy conversion systems
US8838367B1 (en) 2013-03-12 2014-09-16 Mcalister Technologies, Llc Rotational sensor and controller
US9091204B2 (en) 2013-03-15 2015-07-28 Mcalister Technologies, Llc Internal combustion engine having piston with piston valve and associated method
US9255560B2 (en) 2013-03-15 2016-02-09 Mcalister Technologies, Llc Regenerative intensifier and associated systems and methods
US9377105B2 (en) 2013-03-12 2016-06-28 Mcalister Technologies, Llc Insert kits for multi-stage compressors and associated systems, processes and methods
US20240175415A1 (en) * 2021-03-22 2024-05-30 Robert Bosch Gmbh Injection nozzle, fuel injector having injection nozzle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8501647A (nl) * 1985-06-06 1987-01-02 Volvo Car Bv Brandstofinjector.

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US1162789A (en) * 1908-03-24 1915-12-07 Edwin Dorsey Loane Jr Injector.
US1208908A (en) * 1915-06-07 1916-12-19 Orson G Burch Carbureter.
US1376277A (en) * 1918-04-13 1921-04-26 Jr Henry B Higgins Attachment for internal-combustion engines
US1856852A (en) * 1927-10-12 1932-05-03 Palisca Matthew Liquid fuel valve for internal combustion engines
US1902197A (en) * 1930-10-20 1933-03-21 Guiberson Diesel Engine Compan Fuel injector for engines
US2052459A (en) * 1935-03-25 1936-08-25 Joseph F Gelser Combined fuel injection pump and nozzle for internal combustion engines
US2055580A (en) * 1934-06-07 1936-09-29 Kockums Mekaniska Verkstads Ab Internal combustion engine
US2332909A (en) * 1937-04-14 1943-10-26 Fuscaldo Ottavio Fuel injection valve apparatus
US2385239A (en) * 1943-02-08 1945-09-18 Samuel A Unsworth Diesel engine fuel injector
US2530128A (en) * 1944-05-29 1950-11-14 William H Mashinter Fuel injector
US2602702A (en) * 1946-12-20 1952-07-08 Kovach Frank Injector and pump
US2703562A (en) * 1953-03-05 1955-03-08 Jr Harry M Seubert Piston operated pneumatic fuel injector
US2879753A (en) * 1957-03-12 1959-03-31 Fred E Mckinley Water injection apparatus
US2917034A (en) * 1955-10-13 1959-12-15 Bessiere Pierre Etienne Internal combustion engine fuel injection systems
US3005118A (en) * 1954-07-16 1961-10-17 Agnes J Ranseen Electric motors
US3081758A (en) * 1960-05-02 1963-03-19 Walker Mfg Co Pressure actuated fuel injector
US3456628A (en) * 1966-04-13 1969-07-22 Sopromi Soc Proc Modern Inject High-speed fuel injection system
US3662987A (en) * 1969-02-28 1972-05-16 Bosch Gmbh Robert Injector valve
US3680782A (en) * 1969-10-24 1972-08-01 Sopromi Soc Proc Modern Inject Electromagnetic injectors
US3702683A (en) * 1970-12-18 1972-11-14 Bosch Gmbh Robert Fuel injection valve
US3802626A (en) * 1971-07-08 1974-04-09 Peugeot Device for actuating an electromagnetically controlled injector
US3839943A (en) * 1972-06-23 1974-10-08 Sopromi Soc Proc Modern Inject Electromagnetic injector with assist
US3882833A (en) * 1972-07-12 1975-05-13 British Leyland Austin Morris Internal combustion engines
DE2419425A1 (de) 1974-04-23 1975-11-06 Daimler Benz Ag Einspritzvorrichtung fuer gemischverdichtende brennkraftmaschinen
US3967597A (en) * 1973-10-03 1976-07-06 Robert Bosch G.M.B.H. Electromagnetically actuated fuel injection valve
US4062327A (en) * 1974-09-11 1977-12-13 Peter Brian Knights Internal combustion engine
US4097833A (en) * 1976-02-09 1978-06-27 Ledex, Inc. Electromagnetic actuator
US4116389A (en) * 1976-12-27 1978-09-26 Essex Group, Inc. Electromagnetic fuel injection valve
US4197996A (en) * 1978-12-07 1980-04-15 Ford Motor Company Constant pressure fuel injector assembly
US4247044A (en) * 1979-12-26 1981-01-27 General Motors Corporation Compression operated injector

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GB1599649A (en) * 1977-12-09 1981-10-07 Lucas Industries Ltd Fuel injection system

Patent Citations (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1162789A (en) * 1908-03-24 1915-12-07 Edwin Dorsey Loane Jr Injector.
US1208908A (en) * 1915-06-07 1916-12-19 Orson G Burch Carbureter.
US1376277A (en) * 1918-04-13 1921-04-26 Jr Henry B Higgins Attachment for internal-combustion engines
US1856852A (en) * 1927-10-12 1932-05-03 Palisca Matthew Liquid fuel valve for internal combustion engines
US1902197A (en) * 1930-10-20 1933-03-21 Guiberson Diesel Engine Compan Fuel injector for engines
US2055580A (en) * 1934-06-07 1936-09-29 Kockums Mekaniska Verkstads Ab Internal combustion engine
US2052459A (en) * 1935-03-25 1936-08-25 Joseph F Gelser Combined fuel injection pump and nozzle for internal combustion engines
US2332909A (en) * 1937-04-14 1943-10-26 Fuscaldo Ottavio Fuel injection valve apparatus
US2385239A (en) * 1943-02-08 1945-09-18 Samuel A Unsworth Diesel engine fuel injector
US2530128A (en) * 1944-05-29 1950-11-14 William H Mashinter Fuel injector
US2602702A (en) * 1946-12-20 1952-07-08 Kovach Frank Injector and pump
US2703562A (en) * 1953-03-05 1955-03-08 Jr Harry M Seubert Piston operated pneumatic fuel injector
US3005118A (en) * 1954-07-16 1961-10-17 Agnes J Ranseen Electric motors
US2917034A (en) * 1955-10-13 1959-12-15 Bessiere Pierre Etienne Internal combustion engine fuel injection systems
US2879753A (en) * 1957-03-12 1959-03-31 Fred E Mckinley Water injection apparatus
US3081758A (en) * 1960-05-02 1963-03-19 Walker Mfg Co Pressure actuated fuel injector
US3456628A (en) * 1966-04-13 1969-07-22 Sopromi Soc Proc Modern Inject High-speed fuel injection system
US3662987A (en) * 1969-02-28 1972-05-16 Bosch Gmbh Robert Injector valve
US3680782A (en) * 1969-10-24 1972-08-01 Sopromi Soc Proc Modern Inject Electromagnetic injectors
US3702683A (en) * 1970-12-18 1972-11-14 Bosch Gmbh Robert Fuel injection valve
US3802626A (en) * 1971-07-08 1974-04-09 Peugeot Device for actuating an electromagnetically controlled injector
US3839943A (en) * 1972-06-23 1974-10-08 Sopromi Soc Proc Modern Inject Electromagnetic injector with assist
US3882833A (en) * 1972-07-12 1975-05-13 British Leyland Austin Morris Internal combustion engines
US3967597A (en) * 1973-10-03 1976-07-06 Robert Bosch G.M.B.H. Electromagnetically actuated fuel injection valve
DE2419425A1 (de) 1974-04-23 1975-11-06 Daimler Benz Ag Einspritzvorrichtung fuer gemischverdichtende brennkraftmaschinen
US4062327A (en) * 1974-09-11 1977-12-13 Peter Brian Knights Internal combustion engine
US4097833A (en) * 1976-02-09 1978-06-27 Ledex, Inc. Electromagnetic actuator
US4116389A (en) * 1976-12-27 1978-09-26 Essex Group, Inc. Electromagnetic fuel injection valve
US4197996A (en) * 1978-12-07 1980-04-15 Ford Motor Company Constant pressure fuel injector assembly
US4247044A (en) * 1979-12-26 1981-01-27 General Motors Corporation Compression operated injector

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475690A (en) * 1981-10-06 1984-10-09 Robert Bosch Gmbh Magnetic valve, in particular a fuel injection valve
US4568021A (en) * 1984-04-02 1986-02-04 General Motors Corporation Electromagnetic unit fuel injector
US4813599A (en) * 1986-08-30 1989-03-21 Robert Bosch Gmbh Electromagnetically actuatable fuel injection valve
US4922880A (en) * 1987-10-26 1990-05-08 Voest-Alpine Automotive Gesellschaft Mb. Ii. Fuel injector for internal combustion engines
US20110125391A1 (en) * 1989-06-12 2011-05-26 Mcalister Technologies, Llc Pressure energy conversion systems
US8311723B2 (en) * 1989-06-12 2012-11-13 Mcalister Technologies, Llc Pressure energy conversion systems
EP0680559B2 (fr) † 1992-02-17 2001-12-05 Orbital Engine Company (Australia) Pty. Ltd. Injecteurs
US5836521A (en) * 1995-03-09 1998-11-17 Dysekompagniet I/S Valve device with impact member and solenoid for atomizing a liquid
US5820099A (en) * 1997-05-20 1998-10-13 Siemens Automotive Corporation Fluid migration inhibitor for fuel injectors
US20040040535A1 (en) * 1999-11-19 2004-03-04 Denso Corporation Ignition and injection control system for internal combustion engine
GB2356428B (en) * 1999-11-19 2004-04-28 Denso Corp Ignition and injection control system for internal combustion engine
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Also Published As

Publication number Publication date
DE3264247D1 (en) 1985-07-25
EP0063049B1 (fr) 1985-06-19
JPS57179363A (en) 1982-11-04
EP0063049A1 (fr) 1982-10-20
CA1176926A (fr) 1984-10-30

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